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本帖最后由 simple123 于 2024-2-24 16:21 编辑
各位老师、同学:
根据教程:https://wiki.aalto.fi/display/IMM/Cellulose+nanofibril+MD+tutorial
纤维素pdb文件通过cellulose-builder获得,参数为:PHASE=i-beta , PBC=none , PCB_c=true ; ( fibril , 40 , )
在进行gmx x2top -f mfc-20mono.gro -o topol-x2top.top -ff select -pbc -name IBG -noparam -alldih命令时,报错如下:
Opening force field file /sob/gmx2018.8/share/gromacs/top/amber14.ff/atomname2type.n2t
There are 8 name to type translations in file amber14.ff
Generating bonds from distances...
atom 60480
Can not find forcefield for atom O4-21 with 1 bonds
Can not find forcefield for atom C1-1660 with 3 bonds
Can not find forcefield for atom O4-1701 with 1 bonds
Can not find forcefield for atom C1-3340 with 3 bonds
Can not find forcefield for atom O4-3381 with 1 bonds
Can not find forcefield for atom C1-5020 with 3 bonds
Can not find forcefield for atom O4-5061 with 1 bonds
Can not find forcefield for atom C1-6700 with 3 bonds
Can not find forcefield for atom O4-6741 with 1 bonds
Can not find forcefield for atom C1-8380 with 3 bonds
Can not find forcefield for atom O4-8421 with 1 bonds
Can not find forcefield for atom C1-10060 with 3 bonds
Can not find forcefield for atom O4-10101 with 1 bonds
Can not find forcefield for atom C1-11740 with 3 bonds
Can not find forcefield for atom O4-11781 with 1 bonds
Can not find forcefield for atom C1-13420 with 3 bonds
Can not find forcefield for atom O4-13461 with 1 bonds
Can not find forcefield for atom C1-15100 with 3 bonds
Can not find forcefield for atom O4-15141 with 1 bonds
Can not find forcefield for atom C1-16780 with 3 bonds
Can not find forcefield for atom O4-16821 with 1 bonds
Can not find forcefield for atom C1-18460 with 3 bonds
Can not find forcefield for atom O4-18501 with 1 bonds
Can not find forcefield for atom C1-20140 with 3 bonds
Can not find forcefield for atom O4-20181 with 1 bonds
Can not find forcefield for atom C1-21820 with 3 bonds
Can not find forcefield for atom O4-21861 with 1 bonds
Can not find forcefield for atom C1-23500 with 3 bonds
Can not find forcefield for atom O4-23541 with 1 bonds
Can not find forcefield for atom C1-25180 with 3 bonds
Can not find forcefield for atom O4-25221 with 1 bonds
Can not find forcefield for atom C1-26860 with 3 bonds
Can not find forcefield for atom O4-26901 with 1 bonds
Can not find forcefield for atom C1-28540 with 3 bonds
Can not find forcefield for atom O4-28581 with 1 bonds
Can not find forcefield for atom C1-30220 with 3 bonds
Can not find forcefield for atom O4-30261 with 1 bonds
Can not find forcefield for atom C1-31900 with 3 bonds
Can not find forcefield for atom O4-31941 with 1 bonds
Can not find forcefield for atom C1-33580 with 3 bonds
Can not find forcefield for atom O4-33621 with 1 bonds
Can not find forcefield for atom C1-35260 with 3 bonds
Can not find forcefield for atom O4-35301 with 1 bonds
Can not find forcefield for atom C1-36940 with 3 bonds
Can not find forcefield for atom O4-36981 with 1 bonds
Can not find forcefield for atom C1-38620 with 3 bonds
Can not find forcefield for atom O4-38661 with 1 bonds
Can not find forcefield for atom C1-40300 with 3 bonds
Can not find forcefield for atom O4-40341 with 1 bonds
Can not find forcefield for atom C1-41980 with 3 bonds
Can not find forcefield for atom O4-42021 with 1 bonds
Can not find forcefield for atom C1-43660 with 3 bonds
Can not find forcefield for atom O4-43701 with 1 bonds
Can not find forcefield for atom C1-45340 with 3 bonds
Can not find forcefield for atom O4-45381 with 1 bonds
Can not find forcefield for atom C1-47020 with 3 bonds
Can not find forcefield for atom O4-47061 with 1 bonds
Can not find forcefield for atom C1-48700 with 3 bonds
Can not find forcefield for atom O4-48741 with 1 bonds
Can not find forcefield for atom C1-50380 with 3 bonds
Can not find forcefield for atom O4-50421 with 1 bonds
Can not find forcefield for atom C1-52060 with 3 bonds
Can not find forcefield for atom O4-52101 with 1 bonds
Can not find forcefield for atom C1-53740 with 3 bonds
Can not find forcefield for atom O4-53781 with 1 bonds
Can not find forcefield for atom C1-55420 with 3 bonds
Can not find forcefield for atom O4-55461 with 1 bonds
Can not find forcefield for atom C1-57100 with 3 bonds
Can not find forcefield for atom O4-57141 with 1 bonds
Can not find forcefield for atom C1-58780 with 3 bonds
Can not find forcefield for atom O4-58821 with 1 bonds
Can not find forcefield for atom C1-60460 with 3 bonds
-------------------------------------------------------
Program: gmx x2top, version 2018.8
Source file: src/gromacs/gmxpreprocess/x2top.cpp (line 205)
Fatal error:
Could only find a forcefield type for 60408 out of 60480 atoms
For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors
n2t文件如下:
; AMBER14sb format parameters for Cellulose residue (beta-glucose) derived from GLYCAM06
; This files serves to generate the input topologies using X2TOP
O OS 0.0000 16.00 2 C 0.14 C 0.14
C Cg 0.0000 12.01 4 C 0.15 O 0.14 O 0.14 H 0.10
H H1 0.0000 1.008 1 C 0.10
H H2 0.0000 1.008 1 C 0.10
C Cg 0.0000 12.01 4 C 0.15 C 0.15 O 0.14 H 0.10
C Cg 0.0000 12.01 4 C 0.15 H 0.10 H 0.10 O 0.14
O Oh 0.0000 16.00 2 C 0.145 H 0.095
H Ho 0.0000 1.008 1 O 0.09
之前在类似的贴子中也发现有同学遇到类似问题gromacs用X2top产生分子筛top文件时发生错误 - 分子模拟 (Molecular Modeling) - 计算化学公社 (keinsci.com),sob老师给的回复是:n2t文件没设置合适,注意检查里面的距离和实际结构里的Si相关成键的距离
想请教大家该如何检查n2t中原子的距离和实际结构中相关成键的距离
劳请大家帮忙,十分感谢!
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